(Advanced) Editing the default view of "Recent" on the Home Pages of objects
When you click on a tab - you always arrive in the "Recent" view on the homepage of an object. What fields appear in the recent view can be edited!
Since this is a custom object we need to go to Setup / App Setup / Create / Objects / and choose the Occurrence object.
Scroll down the custom object page to get to the Search Layouts section
Just as you can with views you create for the object, you can choose the fields that appear when you arrive on the home page.